Hello,
recent changes in the smith chart code, especially in coordinate system
handling, broke my existing figures, and it took a while to find out how
to deal with CS in recent versions of pgfplots. Since this is not
covered by the manual, it would be nice if it could be explained there
for other people working with that (it is only explained for \addplot):
In the example
\documentclass{standalone}
\usepackage{pgfplots}
\usepgfplotslibrary{smithchart}
\pgfplotsset{compat=newest}
\begin{document}
\begin{tikzpicture}
\begin{smithchart}
% \pgfplotsset{is smithchart cs}
% \begin{scope}[/pgfplots/is smithchart cs]
\draw [black!40,dashed] (0,0) arc (0:360:.5);
% \end{scope}
\end{smithchart}
\end{tikzpicture}
\end{document}
recent versions do the CS transformation not only for \addplot commands
but for \draw commands etc. as well. One can skip the transformation for
them as well by setting /pgfplots/is smithchart cs, e.g. within a scope
environment. It would be handy if the key could be mapped to the tikz
namespace to be able to skip the /pgfplots/. What does not work is
setting \pgfplotsset{is smithchart cs}, it will result in a dimension
too large error at \end{smithchart} (a bug, maybe?).
Best regards
Chris
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